164 BULLETIN OF THE 



TETRAONID^. 



33. Tetrao obscurus. Apparently more or less common. One was 

 shot in the upper edge of the timber. 



34. Lagopus leucurus. Common above timber line. Said to descend 

 into the timber in winter, when many are killed by the miners for food. 



SCOLOPACID^l. 



35. Tringoides macularius. Common along the Platte to its source. 

 Its nest and eggs were found at Montgomery, July 24th, 



ANATID^S. 



36. Mergus merganser. A pair seen at Montgomery. 



VIII. List of Birds collected in the Vicinity of Ogden, Utah Terri- 

 tory, from September 1st to October St/i, 1871 ; with Annotations. 



The region to which the following remarks refer embraces the north- 

 eastern portion of the valley of the Great Salt Lake, including a por- 

 tion of the lake shore near the mouth of the Weber River, the lower 

 portion of the Weber valley, Ogden Canon, and the mountains north of 

 Ogden. It thus includes a great variety of surface, including the sage- 

 covered plains that form the eastern border of the lake, the numerous 

 lagoons and marshes about the mouth of the Weber River, the thickets 

 of willow and cottonwood that border both this river and the Ogden, 

 and the scantily wooded or almost naked slopes of the adjoining 

 mountains. From the lateness of the season, a few of the summer 

 residents had already migrated, and many others that pass the summer 

 in the mountains or to the northwards had become common. The 

 higher parts of the Wahsatch Range, which bounds the Great Salt Lake 

 Valley to the eastward, doubtless form the summer haunts of most of 

 the land birds observed here, which leave the valley in summer, since 

 the higher peaks of the range rise to the snow line. 



The great abundance of aquatic birds that frequent the vicinity of 

 the Great Salt Lake has long been known as one of the characteristic 

 ornithological features of this interesting locality, especially the abun- 

 dance of pelicans, gulls, cormorants, avocets, stilts, ducks, and other 

 wading and swimming birds, many of which regularly pass the summer 

 here and breed on the islands of the lake. Yet the bird fauna of this 

 peculiar region has not as yet been fully explored, and hence still offers a 

 highly attractive and promising field to the collector. The only special 



